Leukocytes (++) in urine test in women may develop into chronic cystitis, chronic pyelonephritis, and in more severe cases, perinephric abscess, renal papillary necrosis, as well as bacteremia and sepsis. The presence of white blood cells in the urine generally indicates the presence of a urinary tract infection, which is classified as acute cystitis or acute pyelonephritis. If acute cystitis is not treated in a timely manner, is not very sensitive to drugs or has complex urinary tract factors, it may develop into chronic cystitis, which is incurable, with gradual contracture of the bladder and a gradual decline in function. In the case of acute pyelonephritis, during the acute phase of the disease, it may be complicated by perinephric abscess, renal papillary necrosis, and in more severe cases, after the bacteria enter the bloodstream, it may also cause bacteremia, sepsis, and even infectious shock. Of course, it should be emphasized that the chances of these complications appearing are very small, and if acute pyelonephritis is not treated in a timely manner, it may also be transformed into chronic pyelonephritis, and once it starts Eventually it will develop into chronic renal failure.